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j UNITED STATES PATENT OFFICE.

noBEnTw. wHiTEHUnsT, OF NORFOLK, VIRGINIA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 224,753, dated February 17, 1880.

Application filed December 10, 1879.

To all whom t may concern of ways to obviate the exposure on the wearingsurface of bolt-heads; and I do not claim to be the first to invent means to accomplish the said object.

My invention therefore consists in the special instrumentalities hereinafter described and claimed.

In the drawings hereto annexed, Figure lis a view of a plow embodying my improvements. Fig. 2 is an inner side view of mold-board. Fig. 3 shows the share and point. Fig. 4 is a section of the same. Fig. 5 is a mold-boardside -view of the iron parts of a plow embodying the first feature of my invention. Fig. 6 is a land-side view of same. Fig. 7 shows the land-side view of standard with land-side removed. Fig. 8 shows the land-side piece inverted andexposing' its inner side.

The letter A designates the standard, pro vided with the foot b, which projects laterally from its front edge, and is adapted to support the mold-board and share. This foot has on its outer face a concave socket, c, and just above the socket an opening, d, which is in line with the inner surface of land-side part of the standard.- i

The share B is provided on its lower surface with a 1ug,"e, lwhich projects above its upper edge. The upper face of this lug is on a plane with the lower surface of the share, and the lower side of lsaid lug is convex (see Fig. 4.). and of size to fit within the concave socket on the foot. becomes iiush with the outer face of the foot.

` A countersunk bolt-hole is formed in the lug Thus the upper face of the lug The mold-board C is provided on its inner 1 or lower side with a lug, f, which is adapted to pass through and t in the opening d in the foot. rIhe part of this lug which projects below the foot is in contact with the inner surface ofthe land-side part of the standard. A countersunk bolt-hole, h, is formed on the outer side of the land-side part of the standard, and coincides with a bolt-hole in the lug f.

The land-side piece E is provided on its inner face with two lugs, fi, through each of which is a bolt-hole, and these lugs pass through holes n formed in the side nea-r the bottom of the standard, and when in place the land-side E will cover the bolt-head in the hole h.

To put together the parts of the plow constructed as described, the point and share B is placed with its lug e in the socket o and bolted fast. The mold-board is then placed in position with its lug f passed through the opening d and bolted fast. Thus the part p of the mold-board will cover the bolt which passes through the lug e of the sha-re. The land-side is next placed in position and bolted, and thus covers the head of the bolt which secures the mold-board.

As shown in the drawings, the standard A may be constructed so as., to permit the beam to be secured directly on top thereof, as may be done with the form shown in Figs. 5 and 6, and the end of `the beam in such case may be secured to one of the handles; but the second part of my improvement contemplates that the standard shall extend upward and form a curve, R, projecting forward and downward, and thence extending horizontally forward, terminating in a socket or with iilanges S, in which the wood beam T may be secured. By this peculiar construction of standard unusual space in the vertical direction is provided above the cutter and between it and the beam proper, thus obviating the liability of vines or other trash to choke the plow, andat the same time the plow-beam is maintained at its proper height.

IOO

the standard-foot, and an opening, d, through having on its lower side 2L lug,f, provided with a bolt-hole and adapted to n't in the opening d through the foot, on the lower side of which itis secured by ai bolt entering the hole h in the land-side part, as shown and described.

2. In a plow, the means. for avoiding the eX- posure of bolt-heads, consisting in a socket, o, on the outer face of the-standard-foot, and an opening, d, through the foot in line with the inner surface of the land-side part, and the share having a lug, e, projecting above its upper edge and adapted to t Within the socket, leaving the upper face of the lug ush With the outer face of the foot, and the mold-board having on its lower side ai lug, f, provided with a bolt-hole and adapted to lit in the opening d through the foot, on the lower side of Which itI is secured by a, bolt entering the hole h in the land-side part of standard, and the landside E, secured to the standard so as to cover the bolt in lche hole lues shown and described.

ROBERT W. WHITEHURST. Witnesses.:

W. A. NUMSEN, J osHUA M. MYERS. 

